MASSEY FERGUSON 5400 - Page 176

Massey Ferguson 5400 - Issue 1.a
05F01.18
GBA20 selector rails with mechanical reverse shuttle
Adjusting the clearance of the Hare /
Tortoise fork pads and the synchromesh
sliding coupler
Principle
The positioning of fork (20) is obtained by acting upon
the difference between the distance between the
centre lines of the tapped holes "Y" and the centre lines
of the receiving indents "Z" on piston (13).
A different fork movement is obtained by acting either
on the front screw or on the rear screw according to
the adjustment required (Fig. 19).
Adjustment
72. Position the control piston (13) and the sliding
coupler "C" in the high range (Hare) (Fig. 21).
73. Maintain the sliding coupler manually against
pinion "L" of the high range (Fig. 21).
74. Adjust the position of the fork (20) using the two
adjusting screws (19) previously cleaned in solvent
and lightly smeared with Loctite 221 or equivalent,
in order to obtain a clearance of J1 = 0.3 mm
between the rear face of the pad and the sliding
(Fig. 20 - Fig. 21).
N
OTE: For this adjustment, use the locally made
tool (see § F).
Fig. 19
Fig. 20
Fig. 21